Word: ultraviolet
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Dates: during 1960-1969
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...Dyes for staining tissues and cells and even individual germs, including some to make suspect substances glow under ultraviolet rays...
Space beyond the belt has unknown perils too. Bright flares breaking out of the sun occasionally fill it with X rays, ultraviolet and erratically curving streams of high-energy particles. No one knows how to forecast these tempests in space, or how to keep them from killing unshielded spacemen. If manned lunar spacecraft must be protected by heavy shielding, the rockets that launch them will have to be made bigger, and this will cause change and long delay all down the line...
During the latest test the Aerobee-Hi rocket rose to an altitude of over 200 kilometers. At this height the spectroscope, mounted in the nose of the rocket, was automatically pointed at the center of the sun and observed the ultraviolet radiation above the layers of air that normally form that part of the solar spectrum...
...roughly three minutes at the peak of the rocket's orbit, the spectrometer functioned in its first mode of operation, recording the intensity of ultraviolet light over a narrow range of frequencies. Three and one half scans were completed before the Aerobee plunged back towards earth...
...during the Sept. 6 flight. In this mode the 40 lb. gold-plated box that holds the electronic equipment will scan up-and-down and across the solar disc in order to pick up an entire image of the sun at these short wave-lengths. Scientists expect that these ultraviolet "pictures" of the sun will help them better understand chromospheric solar flares...